BlackRock Fund Advisors’s ION Geophysical Corporation IO Stock Holding History

BlackRock Fund Advisors’s Portfolio IO Stock Details IO Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2016 Q4	$160K	Buy	26,672 +784	+3%	+$5.37K	﹤0.01%	3485
2016 Q3	$177K	Sell	25,888 -43	-0.2%	-$248	﹤0.01%	3486
2016 Q2	$162K	Sell	25,931 -209,558	-89%	-$1.57M	﹤0.01%	3529
2016 Q1	$1.9M	Sell	235,489 -11,141	-5%	-$64.9K	﹤0.01%	3092
2015 Q4	$1.86M	Sell	246,630 -307,475	-55%	-$2.19M	﹤0.01%	3164
2015 Q3	$3.24M	Buy	554,105 +20,215	+4%	+$213K	﹤0.01%	2986
2015 Q2	$8.57M	Buy	533,890 +4,577	+0.9%	+$123K	﹤0.01%	2600
2015 Q1	$17.2M	Buy	529,313 +23,129	+5%	+$830K	﹤0.01%	2143
2014 Q4	$20.9M	Buy	506,184 +65,997	+15%	+$2.6M	0.01%	2043
2014 Q3	$18.4M	Sell	440,187 -21,000	-5%	-$1.12M	0.01%	2011
2014 Q2	$29.2M	Sell	461,187 -32,351	-7%	-$2.04M	0.01%	1787
2014 Q1	$31.2M	Buy	493,538 +10,847	+2%	+$594K	0.01%	1741
2013 Q4	$23.9M	Buy	482,691 +11,612	+2%	+$704K	0.01%	1892
2013 Q3	$36.7M	Buy	471,079 +48,382	+11%	+$3.98M	0.01%	1558
2013 Q2	$38.2M	Buy	+422,697	New	+$39.4M	0.01%	1420

Other funds holding IO

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

GCM

Gates Capital Management New York $4.16B AUM 21% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return

Neuberger Berman Group New York $150B AUM 40.08% 1-Year Est. Return

BIT

BlackRock Institutional Trust San Francisco, California $675B AUM 16.07% 1-Year Est. Return

SIM

Spark Investment Management New York $51.2M AUM 87.14% 1-Year Est. Return

Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

BCM

Bridgeway Capital Management Houston, Texas $5.69B AUM 60.64% 1-Year Est. Return

BlackRock Fund Advisors's IO Position: Q4 2016 in Review

BlackRock Fund Advisors increased its ION Geophysical Corporation (IO) stake by 3% in Q4 2016, buying an estimated $5.37K and bringing the position to 26,672 shares worth $160K. The position accounts for ﹤0.01% of the portfolio, ranked #3485.

BlackRock Fund Advisors first reported a position in IO in Q2 2013 and has held it in 15 quarters since. The position peaked at $38.2M in Q2 2013. 66 funds tracked by Wall St. Rank hold IO as of Q4 2016.

BlackRock Fund Advisors held 26,672 shares of ION Geophysical Corporation worth $160K as of Q4 2016.
BlackRock Fund Advisors bought 784 ION Geophysical Corporation shares in Q4 2016, an estimated $5.37K.
ION Geophysical Corporation made up ﹤0.01% of BlackRock Fund Advisors's portfolio in Q4 2016, its #3485 holding.
BlackRock Fund Advisors first reported a position in ION Geophysical Corporation in Q2 2013 and has held it in 15 quarters since.
BlackRock Fund Advisors's ION Geophysical Corporation position peaked at $38.2M in Q2 2013.
66 funds tracked by Wall St. Rank held ION Geophysical Corporation as of Q4 2016.

Based on BlackRock Fund Advisors's 13F filing for Q4 2016, filed 10 Feb 2017.